| RRC ID |
56571
|
| 著者 |
Nishimura K, Moriyama R, Katsura K, Saito H, Takisawa R, Kitajima A, Nakazaki T.
|
| タイトル |
The early flowering trait of an emmer wheat accession (Triticum turgidum L. ssp. dicoccum) is associated with the cis-element of the Vrn-A3 locus.
|
| ジャーナル |
Theor Appl Genet
|
| Abstract |
KEY MESSAGE:We identified a novel allele of the Vrn-A3 gene that is associated with an early flowering trait in wheat. This trait is caused by a cis-element GATA box in Vrn-A3. To identify novel flowering genes in wheat, we investigated days from germination to heading (DGH) in tetraploid wheat accessions. We found that the tetraploid variety Triticum turgidum L. ssp. dicoccum (TN26) harbors unknown genes that surpass the earliness effect of the early flowering allele Ppd-A1a harbored by TN28 (T. turgidum L. ssp. turgidum conv. pyramidale). Using recombinant inbred lines resulting from a cross between TN26 and TN28, we performed a quantitative trait locus (QTL) analysis for DGH. We identified a QTL for earliness in TN26 on chromosome 7AS, the chromosome on which Vrn-A3 is located. By sequence analysis for the Vrn-A3 locus in both TN26 and TN28, we identified a 7-bp insertion that included a cis-element GATA box sequence at the promoter region of the Vrn-A3 locus of TN26. Based on an expression analysis using sister lines for Vrn-A3, we suggest that the early flowering trait of TN26 was caused by the GATA box in Vrn-A3. In addition, we identified tetraploid wheat as a useful genetic resource for wheat breeding.
|
| 巻・号 |
131(10)
|
| ページ |
2037-2053
|
| 公開日 |
2018-10-1
|
| DOI |
10.1007/s00122-018-3131-5
|
| PII |
10.1007/s00122-018-3131-5
|
| PMID |
29961103
|
| MeSH |
Alleles
Crosses, Genetic
DNA Transposable Elements*
Flowers / physiology*
Genes, Plant
Phenotype
Plant Breeding
Promoter Regions, Genetic
Quantitative Trait Loci*
Tetraploidy
Triticum / genetics*
Triticum / physiology
|
| IF |
3.926
|
| 引用数 |
2
|
| リソース情報 |
| コムギ |
KU-122
KU-491
KU-494
KU-495
KU-496
KU-3723
KU-113
KU-120
KU-462
KU-10503 |
